SEW齒輪減速機(jī)

1、Voith Turbocoupling with constant fillingPrinciple of a Voith TurbocouplingMotorPumpTurbinecouplingOilflowTurbinewheelPumpenwheelVoith Turbocouplings with constant fillingBasic designPump wheelTurbine wheel Outer shellVoith Turbocoupling Type TOperating conditionsNormal ratingstationarystartingTorqu

2、e characteristic dependent of the degree of fillingPrimary characteristic2filling 80%M1Secondary characteristic10100n1 %Mnom70%60%50%40%M2MnomMnom0100n1 %SSlipBasic designs of constant filled couplingsTTV/TVVTVVSVoith Turbocoupling Type TRI und TVRIWithout or with delay chamber;with support vee-belt

3、 pulleyCharacteristic curvesTMTLTKTNTLJ=MotortorqueLoadtorqueCouplingtorqueRated torqueconst.const.Run up driven mach.MotortorqueMotor run upMotorspeedSpeedtime 5 Sec.40 Sec.21021,61,41TKTMTKTLT/TNT/TNT/TNPower transmissiondiagramSilumin hor quenchedMotorspeed min-1Rated power3200 KW 160080040020075

4、5530157,531,50,370,55300 400 60080015002000400030001150 D11501000866750650562487422366274 D274206 D206154 D154 50 Hz60 Hz600750 90018003600Example:Motorspeed 1500 min -1Rated power 55 kW= Coupling size 422inner- / outerwheel drive - definitioninner wheelouter wheelmotormotorOuter Wheel driveInner Wh

5、eel drivepowermotorouter wheelinner wheelinputgearinner wheelouter wheeloutputinner- / outerwheel drive differences Iouter wheel driveinner wheel driveweight of couplingon gear shaft (except execution primary flange stub shaft)on motor shaftinertiasmal inertia on gear side less shocks in case of sud

6、den machine blockagehigh inertia on gear sidefilling filling controleasy outer parts can be turned even if brake is closeddrive has to be turned in order to do maintanancestartup (TV; TVV)always same startup behaviouremptying delay chamber depends on machine startup in case of conveyor overload star

7、tup can be problematicheat dissapationallways best possiblelower - specially during startup and when machine is blockedinner- / outerwheel drive differences IIouter wheel driveinner wheel drivestartup characteris-ticsVoith Turbo couplings are optimized for conveyor startup with outer wheel drive (mi

8、xed profile in inner wheel)sliplowerhigher brake fittingstub shaft design or additional brake flange requiredlower cost for brake assembly on elastic couplingoperating fluidVoith couplings are specially adopted to various operating fluids:oilnormally usedwater preferably in underground mining (TW. c

9、ouplings)emulsion and synthetic oil are derivates of the above fluids.EP-fluidEnvironment Polutionfree Fluid quickly biodegradable Hi-fluidHIgh flash point Fluidflame-retardant HFD-U fluid, neither containing any chlorinated hydrocarbons or phosphoric ester. The densitiy of this fluid is lower than

10、the densitiy of wate Fllstand + FllstandskontrolleSicht- bzw. SchmelzsicherungsschraubeVertikale AchseVertikale AchseZhl -richtungZhlrichtungDrehrichtung1zz33221DrehrichtungFllstandfilling + filling controlsight glass or fusible plugvertikal axisvertikal axiscounting directioncounting directionrotat

11、ing directionzz321rotating directionfilling level321consequences of wrong fillingconsequences of wrong filling:filling too high: motor startup takes longer or motor doesnt start at all motor doesnt reach nominal speedfilling too low: machine startup takes longermachine doesnt startmachine runns with increased slipmotor protection switches offcoupling heats up